Radiolysis aspects of the aqueous self-cooled blanket concept and the problem of tritium extraction

Conference · Thu Sep 01 04:00:00 EDT 1988 · Fusion Technol.; (United States)

OSTI ID:5866136

Bruggeman, A; Snykers, M; DeRegge, P; Embrechts, M J

In the Aqueous Self-Cooled Blanket (ASCB) concept, an aqueous /sup 6/Li solution in a metallic structure is used as a fusion reactor shielding-breeding blanket. Radiolysis effects could be very important for the design and the use of an ASCB. Although many aspects of the radiation chemistry of water and dilute aqueous solutions are now reasonably well understood, it is not possible to predict the radiochemical behaviour of the concentrated candidate ASCB solutions quantitatively. However, by means of a worst case calculation for a possible ASCB for the Next European Torus (NET) it is shown that even with an important rate of water decomposition the ASCB concept is still workable. Gas bubbles and explosive mixtures can be avoided by increasing the pressure in the neutron irradiated zone and by extracting and/or recombining the radiolytically produced hydrogen and oxygen. This could require an additional inert gas loop, which could also be used as part of the tritium extraction installation.

• Research Organization: Studiecentrum voor Kernenergie, SCK/CEN Boeretang 200, B-2400 Mol (BE); Rensselaer Polytechnic Inst., Troy, NY (USA)
• OSTI ID: 5866136
• Report Number(s): CONF-880505-
• Conference Information: Journal Name: Fusion Technol.; (United States) Journal Volume: 14:2
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400700 -- Radiochemistry & Nuclear Chemistry
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
700205 -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
ALKALI METAL ISOTOPES
AQUEOUS SOLUTIONS
BARYONS
BREEDING BLANKETS
CALCULATION METHODS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
COOLING
DECOMPOSITION
DISPERSIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
HYDROGEN
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
ISOTOPES
LIGHT NUCLEI
LITHIUM 6
LITHIUM ISOTOPES
MIXTURES
NET TOKAMAK
NEUTRONS
NONMETALS
NUCLEAR FACILITIES
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
OXYGEN
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOCHEMISTRY
RADIOLYSIS
REACTOR COMPONENTS
SHIELDING
SOLUTIONS
STABLE ISOTOPES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TRITIUM EXTRACTION PLANT
WATER
YIELDS